Filling-vent structure for storage batteries



Nov 19, 1929. B. FORD 1,736,116

v FILLING VENT STRUCTURE FOR STORAGE BATTERIES Filed Maron 29. 192e 2 sheets-sheet 1 WEA/raf? y fuce /C'fo/ B. FORD Nov. 19, 1929.

FILLING VENT STRUCTURE FOR STORAGEBATTERIES Fi 1ed March 29, 1926A 2 sheets-sheet 2 W/rA/VESS:

' from the following description` at the end BRUCE FORD, or PHILAnRn-rnra. primas;r:tv ...fiivi.e.l

FILLING-VENT STRUCTURE, geen STORAGE "BATTERIES,

Application filed March 29,` 152,6. -fSerai- No. 528,317.,

The principal object of the present invention is to obviate the necessity of boring or drilling operations and to provide for producing the necessary parts and ducts by mold- 5 ing operations. Y

Another object of the invention is to simplify and cheapenthe construction of such f structures without detriment tothe performance by them of their functions. i

Other objects of the invention will appear of which the invention will be claimed.

In the following description reference will be made to the accompanying drawings form- 15 ing part hereof and in which 'Figure l is a central sectional view of a filling vent structure embodyingl features of the invention. f

4F ig. 2 isa similar view illustrating a modi- 20 ication.

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2 with `the stopper or plug omitted.

Fig. 4; is atop View of Fig. 8.

Figs. 5 and 6 are a central section and bottom plan view of another modification.

Figs. 7 and 8 are views similar to Figs. 5 and 6 of another modification, and

Figs. 9 and l10 are views similar to Figs. 5 and 6 of another modification.

Referring to the drawings, more particularly Fig. l, 1 is a horizontal cover. v2 is a chamber above, and 3 is a chamber below the cover and they intercommunicate l and are in offset relation to each other. l are vertical vent ducts perforating the offset portion whereby the interior of the top Vchamber 2 is "connected with or is in communication with the exterior of the bottom chamber. As shown the chambers 2 and 3 are provided by a tubular structure extending above and below the rcover and of which the uppervend portion receives a suitably vented plug andV of which thelower end portion extends toward or dips below the level of the electrol lyte not shown because too well understood. `It maybe remarked that gas, vapor or the like carryingspray escapes from above the level of the electrolyte through the vents 4 tothe chambers 2 and 3 where'thev deposit Vof the .modification shown'in Figs. 9 and 1 0 the spray which falls back?i into thefelectiiolyte, the gas escaping at the `ventedi plug.' flt is a feature `of the described `construc- Vtion that. the vent duct or ductsll as well as the rest of the cover structure are capable of .55

structure or ofthe chambersQ and 3 are offsetY 360 in respect to each other and the vertical vent duct l extends through the offset portion and l through the cover or, perhaps more raccurately, past the cover. f i

The construction and mode of operation ofi the modification illustrated in Figs. 2-4 are l Y substantially as described in connection with Fig. l except that the offset occurs attwo points 7, and the ducts la extend through the offset portion and also through a portion of the bounding wall of the cylindrical chamber 3. e

The construction and mode ofoperation of the modification shown in Figs. 5 and 6 vare as above described except that the offset is provided by an eccentric arrangement of the vupper and lower chambers '2a and 3Q.

The construction and mode of-operation of the modification shown in Figs. 7 and 8 are as above described exceptthat'the offset 'isf y provided by flattening the wall of the chamberSb.' .v Y i The construction and mode of operation are as above` described except that theoliseti is provided by warping the walls of rthe'chamber 3c inward at two points.

It willbe obvious tothose skilled in the art to which the invention relates that modiiications may be made in details of construc- L tion and'arrangement and in matters of mere .I

form without departing from the spirit of the l invention whichis not limited to such mattersl r i or otherwise thania's the prior art appended claims may require.

.I claim: 1 j f 1. A fillingvent structurel for storage batL 'e j teries including a'horizontal cover, intercom municating chambers having `Vimperforate` bounding walls and arrangedin/of'fset rela-i 1Q andV the Y 10, of which the other is arranged below the covi -V tion to' each other .and of which one is above cover, ancla vertical vent duct perforatng the the cover and. of which the other is below the Y offset portion whereby ythe interior of the 11pfper Chamber is connected with the exterior of the bottoni chamber.V

`2. Ailling `vent structure for lstorage batteries including a horizontalv cover, intercommunicating vertical tubular chambers of which one 1s arranged above the cover and er, said chambers having imperforate walls 'A v oiset in relation to each other, and a verti-Y cal vent duct extending through the offset portions andgconnecting the interior of theV upper chamber with the exteriorof the lower 

